0112 E055
First Year MBBS Examination
I MBBS Physiology Paper 2
Date: 09-01-2012 Time: 3 hours Max Marks: 50
Instructions: 1. Answer to the points. 2. Use separate

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answer books for each section. 3. Draw diagrams
wherever necessary.
Section 1
1. Write briefly on (any two): (10)
a. Molecular basis of skeletal muscle contraction

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b. Neurological basis of ataxias
c. Colour vision
2. Write briefly on (any two): (6)
a. Goitres
b. Regulation of Insulin

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c. Sympathoadrenal system
3. Write briefly on (any on: (3)
a. Hormones acting on mammary gland
b. Functions of placenta
4. Write briefly on (any on: (6)

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a. Functions of liver

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b. Small intestinal movements
c. Hydrochloric acid secretion in the stomach
Section 2
1. Write briefly on (any two): (10)

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a. REM sleep
b. Synaptic transmission
c. Parkinsonism
2. Write briefly on (any two): (6)
a. Dark adaptation

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b. Endocochlear potentials
c. Olfactory pathway
3. Write briefly on (any on: (3)
a. Muscle tone
b. Wallarian degeneration

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4. Write answers in two or two sentences (any six):
(6)
a. Touching the injured area gives relief.
b. Consensual light reflex.
c. Acute stress causes dryness of mouth.

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d. Causes of latent period.
e. Blood testes barrier.
f. Lower jaw, hands and feet are enlarged in
acromegaly.
g. Hyperpigmentation of skin occurs in

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Addison?TMs disease.
h. Jaundice in newborn infants.
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